74LVC138APW-Q100J Equivalent & Substitute Parts

Part Overview

The 74LVC138APW-Q100J is a decoder/demultiplexer logic integrated circuit manufactured by Nexperia USA Inc. in the 74LVC series. This device implements a 1 x 3:8 decoder/demultiplexer function in a 16-pin TSSOP surface mount package. The part is actively produced and carries AEC-Q100 automotive qualification with ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

74LVC138APW-Q100J

Nexperia USA Inc.In Stock: 261674LVC138APW-Q100J Datasheet

Current PartRFQ

74LVC138APW,118

Nexperia USA Inc.In Stock: 1302574LVC138APW,118 Datasheet

Parametric EquivalentRFQ

MC74LCX138DTR2G

onsemiIn Stock: 3385MC74LCX138DTR2G Datasheet

DirectRFQ

SN74LVC138AMPWTEP

Texas InstrumentsIn Stock: 1331SN74LVC138AMPWTEP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74LVC138APW-Q100J are classified based on functional and electrical equivalence within the allowed parameter ranges:

Parametric Equivalent (74LVC138APW,118): Identical decoder/demultiplexer configuration (1 x 3:8), matching output current specifications (24mA/24mA), identical supply voltage range (1.2V ~ 3.6V), same package (16-TSSOP), and same base product number (74LVC138). Differs only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel).

Direct Manufacturer Equivalent (MC74LCX138DTR2G): Functionally equivalent 1 x 3:8 decoder/demultiplexer from onsemi with matching output current (24mA/24mA) and identical package (16-TSSOP). Operates within a narrower supply voltage range (2V ~ 3.6V) and reduced operating temperature range (-40°C ~ 85°C) compared to the main part.

Similar Manufacturer Equivalent (SN74LVC138AMPWTEP): Texas Instruments 74LVC series decoder/demultiplexer with identical 1 x 3:8 configuration, matching output current (24mA/24mA), and identical package (16-TSSOP). Operates within supply voltage range of 2V ~ 3.6V with extended operating temperature range (-55°C ~ 125°C).

All substitutes maintain the same functional circuit topology, output drive capability, package footprint, and RoHS3 compliance status.

Parameter Comparison

Engineering Selection Recommendations

74LVC138APW,118: Select this parametric equivalent when supply voltage operation below 2V is required or when the full -40°C ~ 125°C temperature range is necessary. This part maintains identical electrical specifications and package compatibility with the main part, differing only in tape format. Both parts carry ROHS3 compliance and unlimited moisture sensitivity rating.

MC74LCX138DTR2G: This onsemi substitute is suitable for applications where supply voltage remains within the 2V ~ 3.6V range and operating temperature does not exceed 85°C. The narrower temperature specification may limit use in extended temperature automotive or industrial applications. All other electrical and mechanical parameters remain equivalent.

SN74LVC138AMPWTEP: The Texas Instruments equivalent supports the extended operating temperature range of -55°C ~ 125°C, making it suitable for applications requiring operation below -40°C. Supply voltage operation is limited to 2V ~ 3.6V. This part maintains full ROHS3 compliance and identical package specifications.

All substitutes are active products with current manufacturing status and carry equivalent compliance certifications. Selection should be based on specific supply voltage and temperature requirements of the target application.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC138APW,118 be used as a direct replacement for the 74LVC138APW-Q100J?

A: Yes. Both parts are from Nexperia USA Inc., share identical electrical specifications (1 x 3:8 decoder/demultiplexer, 24mA output current, 1.2V ~ 3.6V supply voltage, -40°C ~ 125°C operating range), and use the same 16-TSSOP package. The difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel).

Q: What are the limitations of the MC74LCX138DTR2G substitute?

A: The MC74LCX138DTR2G operates within a narrower supply voltage range (2V ~ 3.6V minimum versus 1.2V for the main part) and a reduced operating temperature range (-40°C ~ 85°C maximum versus 125°C). Applications requiring sub-2V operation or temperatures above 85°C cannot use this substitute.

Q: Is the SN74LVC138AMPWTEP suitable for low-temperature applications?

A: Yes. The SN74LVC138AMPWTEP supports operating temperatures down to -55°C, compared to -40°C for the main part. This makes it suitable for applications requiring extended low-temperature operation. Supply voltage range is limited to 2V ~ 3.6V.

Q: Are all substitute parts in the same package?

A: Yes. All listed substitutes use the 16-TSSOP package with 0.173" width and 4.40mm body width. PCB footprints are mechanically compatible.

Q: Do all substitutes maintain RoHS3 compliance?

A: Yes. All substitute parts listed carry ROHS3 compliance status and unlimited moisture sensitivity level (MSL 1), matching the main part specifications.

Q: What is the primary difference between the 74LVC and 74LCX series?

A: The 74LVC series (Nexperia and Texas Instruments) and 74LCX series (onsemi) are both low-voltage CMOS logic families with similar functional performance. The MC74LCX138DTR2G operates within a narrower voltage and temperature specification window compared to the 74LVC variants.